Porthole closure



M. D. DOMINGUEZ.

POBTHOLE CLOSURE.

APPLICATION FILED SEPT. 21, 1921.

1,40%,941 Patented. Jan. 311, 1922.

IN VEN TOR.

MANUEL BOEING-WEEK, @F HEW QRLEAW2, ZJQUXSMA) ASSIGIBTOE' 055 UNEHMF Em JUAN ABGQTE, OF NEW GREENS, LOUISE-5N2.

PURTHQLE CLOSURE.

Specification of Letters Patent. I

Patented J an. 31L, 1922..

To all whom it may concern:

Be it known that I, MANUEL D. Dom n- GUEZ, a subject of the King of Spain residing at New Orleans, in the parish of (drleans and State of Louisiana, have invented certain new and useful Improvements in Forthole Closures, of which the following is a specification.

The invention relates to port hole closures, and has as an object the provision of means for closing port holes in ships, submarines, etc., in such a manner that water can not enter even though under pressure upon the exterior of the vessel.

An illustrative embodiment of the invention is shown in the accompanying drawings, in which- Fig. 1 is a front elevation showlng the port hole open;

Fig. 2 is a similar view showing the port hole closed;

Fig. 3 is a side elevation from the left of Fig. 2;

Fig. 4: is a detail side elevation showing the cam means for securing the port hole 1n closed condition; I

Fig. 5 is a detail elevation of a modlfication of locking means.

As shown the port hole closure is supported upon a flange 1 which may be secured to the vessel, and bears a ring 2 preferably integral therewith. An annular flange 5 projects radially outwardly from the rmg 2, and is provided with openings or passages formed in the edge thereof. A ring or collar 6 is shown surrounding the ring 2 and underlying the flange 5. The ring 2 is shown projecting slightly above the flange 5 to pro vide an edge for connection with a gasket 15 carried by the closure. I

Projecting from the ring 2 is shown a pair of hinge members 8 having eyes 9 at their end between which eyes the hinge member 10 seats, a pintle being passed through the thus formed hinge. Integral with the eye 10 are two arms 11 which extend to diametrically opposite points upon the closure member and are provided with eyes 12 at their ends. Studs provided upon the closure member are journaled in the eyes 11.

The closure member comprises an annular member 13 having a seat with a glass 18 secured therein in any well known manner.

.W1thin a groove in the edge of the annular member 13 a gasket 15 is preferably formed. Suitably spaced to pass through the openings in the flange 5 there are shown hooks 14.- formed integral with the ring 13. When the c losure member is swung to the closed posltion shown in Figs. 2 to 4 inclusive the inner end of the hooks 14: will lie in the positlon shown in Fig. 1, and projections 23 carried by the collar 6 adjacent the edges of passages 24 formed therein may be revolved so as to exercise a cam action' to force the closure firmly against its seat about its pe riphery. A handle 7 is preferably formed integral with the collar 6 for convenience in its manipulation. Handles 19, preferably in the form of rings as shown in Fig. 3, are applied to the inner face of the closure member 13, and may be utilized to pull the window away from its seat after the securing means has been released. 7

A look to prevent undesired loosening of the collar 6, due to the inclination of the cams by which it coacts with the hooks 14, is shown in Fig. 5. In this figure a handle 22 corresponding to handle 7 is shown journaled upon a pin projecting from collar 6, and is provided with a spiral cam adjacent the edge of the collar. Pivoted to the collar 6 1s a latch member 20 having a point adapted to connect with one of a number of teeth, each formed in the edge of flange 5. When the handle 22 is rotated to its limit of movement in one direction the latch member 20 may drop from connection with the teeth upon flange 5 and the collar 6 may be ro tated by means of the handle 22. When the closure member has been shut by rotation of the collar 6 an axial revolution of the handle 22 will cause the latch 20 to interlock with the flange 5, thus securing the collar 6 in its position to retain the closure member closed.

I claim:

1. A port hole closure comprising in combination a supporting member having a flange, a closure member hinged upon said supporting member for approach thereto in a plane parallel with said supporting member, a flange upon said supporting member having passages therein, cam shaped hook members carried by said closure member adapted to enter said passages, a revoluble collar retained by said flange havin portions d pte t act with said cam s aped hooks to press the closure member to said.

support.

2. A port hole closure comprising in combination a supporting ring having a flange provided with passages therein, a closure member hinged to said support for parallel approach to its seat thereon, securing devices having cam extremities adapted to enter said passages, a revoluble collar retained by said flange having passages corresponding with the said first named passages and portions adapted to coact with said cam extremities upon revolution of said collar, and a gasket carried b said closure member.

3. A port hole 0 osure comprising in combination a suEporting rin having a flange provided wit passages t erein, a closure member hinged to said support for parallel approach to its seat thereon, securing devices having cam extremities adapted to enter said passages, a revoluble collar retained MANUEL D. DOMINGUEZ. 

